In 2007, Brazilian non-governmental organisation (NGO) Aquasis conducted museum research and exhaustive field expeditions on the historically reported distribution of Grey-breasted Parakeet in north-east Brazil. The search was instigated due to the alarming decline in the area of occurrences of the parakeet, caused mainly by habitat loss and the illegal traffic of wild-caught birds. At least 16 locations were considered to be possible refuges for the species, but only one population was found, in the humid upland forests of the Serra de Baturité in Ceará State.
As a consequence, Grey-breasted Parakeet was included in the IUCN Red List of Threatened Species as Critically Endangered and, from that year, Loro Parque Fundación has supported Aquasis's programme to save this species from extinction. The Zoological Society for the Conservation of Species and Populations (ZGAP) has also been an early supporter.